Joe, I
am listening to Dan. It seems you didn't read our dialogue attentively.
Using ATF instead of oil seems to me like something not proven safe yet.
This video by Dan has this in its description:
This is not an endorsement of ATF as a lubricant for these hubs, but rather a progress report on a long term test.
Obviously he is not 100% sure that ATF should be used for these hubs.
I don't want to experiment, therefore I would rather stick to proven solutions, ok? Aaron's Bicycle Repair guys have enough professional experience and certainly wouldn't recommend using Phil Wood Tenacious Oil for the gears, pawls and cone bearings, if it wasn't optimal for Shimano hubs.
Originally Posted by
Joe Minton
It is geared lower (higher numerically) than recommended by Shimano (38T front 23 rear).
Mine was 48T front 21T rear, I'm going to swap rear for 19T ring now (I've got both). I want it geared close to when I had 7-speed rear derailleur. 21T is not enough for that.
Originally Posted by
Joe Minton
However, I treat it fairly gently; no jumping off curbs, stomping while standing or shifting with anything more than a light load on the pedals.
I
do jump off curbs sometimes, but carefully and slowly. But I try to never shift while turning pedals (sometimes it happens unintentionally).
Originally Posted by
Joe Minton
Many folks have been running ATF in these hubs with apparent success. Your jumping problems would mostly likely disappear with the use of the lighter oil.
I want first to hear Dan's feedback on my assumption that this might be caused by lithium grease around cone bearings and gears. If he'll confirm, I'll re-lubricate the hub as described above.
Originally Posted by
Joe Minton
These hubs aren't well sealed like many other Shimano hubs. I use Red Line synthetic grease, and a lot of it, in the bearings and under the seals outboard of the bearings. The grease presents a reasonable barrier against water entry.
I know that they aren't sealed well, that's why I use
Phil Wood waterproof grease for outer bearings, and under the seals outboard of the bearings, like you do.
Originally Posted by
Joe Minton
None of these hubs should ever be immersed. If that were to happen to mine, I would dismantle it to be sure no nasty stuff had gotten inside.
Immersed in what?